NCT01437202

Brief Summary

This is a multicenter, retrospective, observational study to validate a pharmacogenetics model for imatinib metabolism and resistance in patients with chronic myeloid leukemia among patients in different independent cohort.

Trial Health

90
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Sep 2011

Geographic Reach
2 countries

3 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2011

Completed
18 days until next milestone

First Submitted

Initial submission to the registry

September 19, 2011

Completed
1 day until next milestone

First Posted

Study publicly available on registry

September 20, 2011

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2012

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2012

Completed
Last Updated

July 9, 2014

Status Verified

July 1, 2014

Enrollment Period

1 year

First QC Date

September 19, 2011

Last Update Submit

July 8, 2014

Conditions

Keywords

imatinibdrug resistancepharmacogenetics

Outcome Measures

Primary Outcomes (1)

  • Median time to CCyR (complete cytogenetic response)

    Difference of median time to CCyR between cohorts according to the risk stratification by gene analysis

Secondary Outcomes (2)

  • Variance of Genotypes from CML patients with Korean ethnicity

  • Median time to MCyR (Major cytogenetic responses)

Study Arms (3)

high risk group

Identified by the predictive model using 2 genotypes and disease stage

intermediate risk group

Identified by the predictive model using 2 genotypes and disease stage

Low risk group

Identified by the predictive model using 2 genotypes and disease stage

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients who were diagnosed as chronic myeloid leukemia, treated with imatinib more than 3 months, at Asan Medical Center, Seoul, Korea.

You may qualify if:

  • Chronic myeloid leukemia of any stage including chronic phase, accelerated or blastic phase.
  • Age\>18 years
  • Complete set of clinical data available for review (demographic data, stage, treatment history, cytogenetic reports, and latest BCR/ABL RQ-PCR results)
  • Treated with imatinib mesylate at least 3 months

You may not qualify if:

  • Treated with imatinib mesylate less than 3 months
  • Not agree with the intention of this study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Princess Margaret Hospital, University of Toronto

Toronto, Canada

Location

Asan Medical Center, University of Ulsan College of Medicine

Seoul, South Korea

Location

Samsung Medical Center, Sungkyunkwan University School of Medicine

Seoul, South Korea

Location

Related Publications (7)

  • Kantarjian HM, Cortes JE, O'Brien S, Luthra R, Giles F, Verstovsek S, Faderl S, Thomas D, Garcia-Manero G, Rios MB, Shan J, Jones D, Talpaz M. Long-term survival benefit and improved complete cytogenetic and molecular response rates with imatinib mesylate in Philadelphia chromosome-positive chronic-phase chronic myeloid leukemia after failure of interferon-alpha. Blood. 2004 Oct 1;104(7):1979-88. doi: 10.1182/blood-2004-02-0711. Epub 2004 Jun 15.

    PMID: 15198956BACKGROUND
  • Kantarjian HM, Talpaz M, Giles F, O'Brien S, Cortes J. New insights into the pathophysiology of chronic myeloid leukemia and imatinib resistance. Ann Intern Med. 2006 Dec 19;145(12):913-23. doi: 10.7326/0003-4819-145-12-200612190-00008.

    PMID: 17179059BACKGROUND
  • Gorre ME, Mohammed M, Ellwood K, Hsu N, Paquette R, Rao PN, Sawyers CL. Clinical resistance to STI-571 cancer therapy caused by BCR-ABL gene mutation or amplification. Science. 2001 Aug 3;293(5531):876-80. doi: 10.1126/science.1062538. Epub 2001 Jun 21.

    PMID: 11423618BACKGROUND
  • Mahon FX, Belloc F, Lagarde V, Chollet C, Moreau-Gaudry F, Reiffers J, Goldman JM, Melo JV. MDR1 gene overexpression confers resistance to imatinib mesylate in leukemia cell line models. Blood. 2003 Mar 15;101(6):2368-73. doi: 10.1182/blood.V101.6.2368.

    PMID: 12609962BACKGROUND
  • Awidi A, Salem II, Najib N, Mefleh R, Tarawneh B. Determination of imatinib plasma levels in patients with chronic myeloid leukemia by high performance liquid chromatography-ultraviolet detection and liquid chromatography-tandem mass spectrometry: methods' comparison. Leuk Res. 2010 Jun;34(6):714-7. doi: 10.1016/j.leukres.2009.08.005. Epub 2009 Sep 9.

    PMID: 19744707BACKGROUND
  • Gardner ER, Burger H, van Schaik RH, van Oosterom AT, de Bruijn EA, Guetens G, Prenen H, de Jong FA, Baker SD, Bates SE, Figg WD, Verweij J, Sparreboom A, Nooter K. Association of enzyme and transporter genotypes with the pharmacokinetics of imatinib. Clin Pharmacol Ther. 2006 Aug;80(2):192-201. doi: 10.1016/j.clpt.2006.05.003.

    PMID: 16890580BACKGROUND
  • Kim DH, Sriharsha L, Xu W, Kamel-Reid S, Liu X, Siminovitch K, Messner HA, Lipton JH. Clinical relevance of a pharmacogenetic approach using multiple candidate genes to predict response and resistance to imatinib therapy in chronic myeloid leukemia. Clin Cancer Res. 2009 Jul 15;15(14):4750-8. doi: 10.1158/1078-0432.CCR-09-0145. Epub 2009 Jul 7.

Biospecimen

Retention: SAMPLES WITH DNA

whole blood 4cc

MeSH Terms

Conditions

Leukemia, Myelogenous, Chronic, BCR-ABL Positive

Condition Hierarchy (Ancestors)

Leukemia, MyeloidLeukemiaNeoplasms by Histologic TypeNeoplasmsMyeloproliferative DisordersBone Marrow DiseasesHematologic DiseasesHemic and Lymphatic DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Jong Won Kim, MD, PhD

    Samsung Medical Center, Sungjyunkwan University School of Medicine, Seoul, Korea

    STUDY CHAIR
  • Dae-Young Kim, MD

    Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

September 19, 2011

First Posted

September 20, 2011

Study Start

September 1, 2011

Primary Completion

September 1, 2012

Study Completion

October 1, 2012

Last Updated

July 9, 2014

Record last verified: 2014-07

Locations